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Finding the Third Proportional to 91,705.92 and 131,721.19

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Solution

The third proportional to 91,705.92 and 131,721.19 is: 189,196.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,705.92 : 131,721.19 = 131,721.19 : x
  2. Step 2: Convert to fraction form
    91,705.92/131,721.19 = 131,721.19/x
  3. Step 3: Cross multiply
    91,705.92x = 131,721.19 × 131,721.19
  4. Step 4: Simplify right side
    91,705.92x = 17,350,471,236.41
  5. Step 5: Solve for x
    x = 17,350,471,236.41/91,705.92
  6. Step 6: Final answer
    x = 189,196.85

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.